This is book 4 of the "Honor Bound" series.

This note contains spoilers for the book.

As by W.E.B. Griffin and William E. Butterworth IV.

Argentina, WWII, Cletus Frade. Lots of historical complexity; the Nazis are planning to retire to Argentina (apparently not anticipating Nuremburg), and are cleverly financing it by ransoming Jews from the death camps. Frade is trying to prove that these things are happening, and dealing with OSS assignments including helping a prisoner of war get out to become involved in the plot to assassinate Hitler. These are the same main plot points of the previous book.

I must say that I cannot remember seeing such negative mainstream reviews before. Publishers Weekly says "Most of the many characters continue to scheme against one another and endlessly discuss their plots, coups, and assassination attempts. Brief, violent altercations occasionally interrupt the talk. As usual, the plot abruptly stops, presumably scheduled to resume in the next installment. Newcomers are advised to start with the first of the series. Those who prefer action in their WWII fiction should go elsewhere." Dave Pitt, writing in Booklist, says "[T]he authors' many fans will likely embrace the novel with open arms (even if casual readers may be a little less forgiving)."

I can't say that I particularly disagree.